diff --git a/ChanSort.Loader.ScmFile/AnalogChannel.cs b/ChanSort.Loader.ScmFile/AnalogChannel.cs
index b3ad71e..ec1c014 100644
--- a/ChanSort.Loader.ScmFile/AnalogChannel.cs
+++ b/ChanSort.Loader.ScmFile/AnalogChannel.cs
@@ -9,7 +9,8 @@ namespace ChanSort.Loader.ScmFile
 
     #region ctor()
 
-    public AnalogChannel(int slot, SignalSource signalSource, DataMapping mapping, decimal freq) : base(mapping)
+    public AnalogChannel(int slot, SignalSource signalSource, DataMapping mapping, decimal freq, int favoriteNotSetValue) :
+      base(mapping, favoriteNotSetValue)
     {
       this.InitCommonData(slot, signalSource, mapping);
 
diff --git a/ChanSort.Loader.ScmFile/ChanSort.Loader.ScmFile.ini b/ChanSort.Loader.ScmFile/ChanSort.Loader.ScmFile.ini
index 51fd058..516267e 100644
--- a/ChanSort.Loader.ScmFile/ChanSort.Loader.ScmFile.ini
+++ b/ChanSort.Loader.ScmFile/ChanSort.Loader.ScmFile.ini
@@ -10,7 +10,6 @@
     map-SateD = 144
     Favorites = 4
 
-
 [Series:C]
     SatDataBase.dat = 145
     TransponderDataBase.dat = 45
@@ -31,6 +30,7 @@
     map-SateD = 172
     map-AstraHDPlusD = 212
     Favorites = 5
+    FavoriteNotSet = 0
 
 [Series:E]
     SatDataBase.dat = 145
@@ -42,6 +42,7 @@
     map-SateD = 168
     map-AstraHDPlusD = 212
     Favorites = 5
+    FavoriteNotSet = -1
 
 [Analog:28]
     ; map-AirA and map-CableA for B series
diff --git a/ChanSort.Loader.ScmFile/DigitalChannel.cs b/ChanSort.Loader.ScmFile/DigitalChannel.cs
index b1463f7..bf68cf0 100644
--- a/ChanSort.Loader.ScmFile/DigitalChannel.cs
+++ b/ChanSort.Loader.ScmFile/DigitalChannel.cs
@@ -7,7 +7,9 @@ namespace ChanSort.Loader.ScmFile
   {
     private const string _ChannelOrTransponder = "offChannelTransponder";
 
-    public DigitalChannel(int slot, SignalSource signalSource, DataMapping data, IDictionary<int, decimal> transpFreq) : base(data)
+    public DigitalChannel(int slot, SignalSource signalSource, DataMapping data, 
+      IDictionary<int, decimal> transpFreq, int favoriteNotSetValue) : 
+      base(data, favoriteNotSetValue)
     {
       this.InitCommonData(slot, signalSource, data);
       this.InitDvbData(data);
diff --git a/ChanSort.Loader.ScmFile/ModelConstants.cs b/ChanSort.Loader.ScmFile/ModelConstants.cs
index 79219d6..6f69e15 100644
--- a/ChanSort.Loader.ScmFile/ModelConstants.cs
+++ b/ChanSort.Loader.ScmFile/ModelConstants.cs
@@ -14,6 +14,7 @@ namespace ChanSort.Loader.ScmFile
     public readonly int dvbtFineTuneLength;
     public readonly Favorites supportedFavorites;
     public readonly int ptcLength;
+    public readonly int favoriteNotSetValue;
 
     public ModelConstants(IniFile.Section iniSection)
     {
@@ -31,6 +32,7 @@ namespace ChanSort.Loader.ScmFile
       for (int i = 0; i < numFavorites; i++)
         mask = (mask << 1) | 1;
       this.supportedFavorites = (Favorites)mask;
+      this.favoriteNotSetValue = iniSection.GetInt("FavoriteNotSet");
     }
   }
 }
diff --git a/ChanSort.Loader.ScmFile/SatChannel.cs b/ChanSort.Loader.ScmFile/SatChannel.cs
index bfc741b..10d1bbd 100644
--- a/ChanSort.Loader.ScmFile/SatChannel.cs
+++ b/ChanSort.Loader.ScmFile/SatChannel.cs
@@ -6,7 +6,8 @@ namespace ChanSort.Loader.ScmFile
   {
     private const string _TransponderIndex = "offTransponderIndex";
 
-    public SatChannel(int slot, DataMapping data, DataRoot dataRoot) : base(data)
+    public SatChannel(int slot, DataMapping data, DataRoot dataRoot, int favoriteNotSetValue) : 
+      base(data, favoriteNotSetValue)
     {
       this.InitCommonData(slot, SignalSource.DvbS, data);
       if (!this.InUse)
diff --git a/ChanSort.Loader.ScmFile/ScmChannelBase.cs b/ChanSort.Loader.ScmFile/ScmChannelBase.cs
index e407dd1..303cd09 100644
--- a/ChanSort.Loader.ScmFile/ScmChannelBase.cs
+++ b/ChanSort.Loader.ScmFile/ScmChannelBase.cs
@@ -1,4 +1,5 @@
-using System.Text;
+using System;
+using System.Text;
 using ChanSort.Api;
 
 namespace ChanSort.Loader.ScmFile
@@ -27,6 +28,8 @@ namespace ChanSort.Loader.ScmFile
     private const string _SymbolRate = "offSymbolRate";
 
     private static readonly Encoding Utf16BigEndian = new UnicodeEncoding(true, false);
+    private static readonly byte[] favoriteSetValue = new byte[] { 1, 0, 0, 0 };
+    private readonly byte[] favoriteNotSetValue;
 
     protected readonly DataMapping mapping;
     protected readonly byte[] rawData;
@@ -34,12 +37,13 @@ namespace ChanSort.Loader.ScmFile
 
     internal bool InUse { get; set; }
 
-    protected ScmChannelBase(DataMapping data)
+    protected ScmChannelBase(DataMapping data, int favoriteNotSetValue)
     {
       this.mapping = data;
       this.rawData = data.Data;
       this.baseOffset = data.BaseOffset;
       this.mapping.DefaultEncoding = Utf16BigEndian;
+      this.favoriteNotSetValue = BitConverter.GetBytes(favoriteNotSetValue);
     }
 
     #region InitCommonData()
@@ -71,7 +75,7 @@ namespace ChanSort.Loader.ScmFile
       byte mask = 0x01;
       foreach (int off in offsets)
       {
-        if ((System.BitConverter.ToInt32(this.rawData, baseOffset + off) + 1) > 1) // -1 and 0 mean "not set"
+        if ((BitConverter.ToInt32(this.rawData, baseOffset + off) + 1) > 1) // unset/set: D=0, E=-1
           fav |= mask;
         mask <<= 1;
       }
@@ -139,10 +143,8 @@ namespace ChanSort.Loader.ScmFile
       byte mask = 0x01;
       foreach (int off in offsets)
       {
-        this.rawData[baseOffset + off + 0] = (byte)((fav & mask) == 0 ? 0 : 1);
-        this.rawData[baseOffset + off + 1] = 0;
-        this.rawData[baseOffset + off + 2] = 0;
-        this.rawData[baseOffset + off + 3] = 0;
+        // unset/set: D-Series=0/1, E-Series=-1/1
+        Array.Copy((fav & mask) == 0 ? favoriteNotSetValue : favoriteSetValue, 0, this.rawData, baseOffset + off, 4);
         mask <<= 1;
       }
     }
diff --git a/ChanSort.Loader.ScmFile/ScmSerializer.cs b/ChanSort.Loader.ScmFile/ScmSerializer.cs
index d3d1974..6c4af5f 100644
--- a/ChanSort.Loader.ScmFile/ScmSerializer.cs
+++ b/ChanSort.Loader.ScmFile/ScmSerializer.cs
@@ -323,7 +323,7 @@ namespace ChanSort.Loader.ScmFile
     #region MapAnalogChannel()
     private void MapAnalogChannel(DataMapping rawChannel, int slotIndex, ChannelList list, decimal freq)
     {
-      AnalogChannel ci = new AnalogChannel(slotIndex, list.SignalSource, rawChannel, freq);
+      AnalogChannel ci = new AnalogChannel(slotIndex, list.SignalSource, rawChannel, freq, c.favoriteNotSetValue);
       if (!ci.InUse)
         return;
 
@@ -370,7 +370,7 @@ namespace ChanSort.Loader.ScmFile
       int count = data.Length / entrySize;
       for (int slotIndex = 0; slotIndex < count; slotIndex++)
       {
-        DigitalChannel ci = new DigitalChannel(slotIndex, list.SignalSource, rawChannel, frequency);
+        DigitalChannel ci = new DigitalChannel(slotIndex, list.SignalSource, rawChannel, frequency, c.favoriteNotSetValue);
         if (ci.OldProgramNr != 0)
           this.DataRoot.AddChannel(list, ci);
 
@@ -456,7 +456,7 @@ namespace ChanSort.Loader.ScmFile
       mapping.SetDataPtr(dvbsFileContent, 0);
       for (int slotIndex = 0; slotIndex < count; slotIndex++)
       {
-        SatChannel ci = new SatChannel(slotIndex, mapping, this.DataRoot);
+        SatChannel ci = new SatChannel(slotIndex, mapping, this.DataRoot, c.favoriteNotSetValue);
         if (ci.InUse)
           this.DataRoot.AddChannel(this.dvbsChannels, ci);
 
@@ -479,7 +479,7 @@ namespace ChanSort.Loader.ScmFile
       mapping.SetDataPtr(hdplusFileContent, 0);
       for (int slotIndex = 0; slotIndex < count; slotIndex++)
       {
-        SatChannel ci = new SatChannel(slotIndex, mapping, this.DataRoot);
+        SatChannel ci = new SatChannel(slotIndex, mapping, this.DataRoot, c.favoriteNotSetValue);
         if (ci.InUse)
           this.hdplusChannels.AddChannel(ci);
         mapping.BaseOffset += entrySize;